Subscribing to a group's mailing list means that you will only receive email messages from the group, so you won't have access to the group's Web features (like photos, files, links, polls, calendar, etc.) unless you get Web access with a full membership later.

Send a blank email to groupname-subscribe@yahoogroups.comNote: Replace groupname with the actual name of the group.
-You'll be sent a confirmation email from the group.